A new slice-based method for calculating the minimum safe thickness for a filled-type karst cave

Stability of dam foundation with Karst caves is analyzed in the presented work.Conceptual model is established according to load analysis such as dam gravity and water press. The curve of point safety coefficient on the structure plane is draw out by using stress checking method.With the comparison of curves under different work conditions, it shows that the most dangerous position of Karst cave is at the dam toe area,with the increasing of dip angle of the structure plane,the safety coefficient declines.Then the possible damage zones,mechanism and failure mode of the dam foundation with Karst caves are analyzed. The result can be used in evaluating the stability of dam foundation with Karst cave.

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Protect China’s karst cave habitats

Science ◽

10.1126/science.abm5389 ◽

2021 ◽

Vol 374 (6568) ◽

pp. 699-699

Author(s):

Yi-Fan Duan ◽

Meng Li ◽

Ke-Wang Xu ◽

Liang Zhang ◽

Li-Bing Zhang

Keyword(s):

Karst Cave

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The safe thickness of water-barrier rock wall during excavation of karst tunnel

2011 International Conference on Electric Technology and Civil Engineering (ICETCE) ◽

10.1109/icetce.2011.5776131 ◽

2011 ◽

Author(s):

Jinshan Sun ◽

Guangli Xu ◽

Jinping Fan ◽

Lu Zhang

Keyword(s):

Karst Tunnel ◽

Rock Wall ◽

Water Barrier ◽

Safe Thickness

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Deformation monitoring and control of the lateral karst cave tunnel

Civil Engineering and Urban Planning IV ◽

10.1201/b19880-39 ◽

2016 ◽

pp. 213-217 ◽

Cited By ~ 1

Author(s):

Dan-Dan Zhang ◽

Fu Xiong ◽

Lan Zhang ◽

Hong Shi

Keyword(s):

Deformation Monitoring ◽

Karst Cave ◽

Monitoring And Control ◽

And Control

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A new representative of the genus Bryocyclops Kiefer, 1927 from a karst cave in north-eastern Thailand (Copepoda, Cyclopoida, Cyclopidae) and comments on the generic affinities

Zoosystematics and Evolution ◽

10.3897/zse.97.52354 ◽

2021 ◽

Vol 97 (1) ◽

pp. 97-109

Author(s):

Santi Watiroyram

Keyword(s):

New Species ◽

Posterior Margin ◽

Present Knowledge ◽

Knowledge Gap ◽

Karst Cave ◽

North Eastern ◽

Generic Affinity ◽

Copepoda Cyclopoida

The seventh Thai species of Bryocyclops Kiefer, 1927 – Bryocyclops jayabhumisp. nov. – was found in a karst cave in the Chaiyaphum Province of north-eastern Thailand. The new species differs from all previously-known species by the absence of an inner seta on the proximal endopod of the first four swimming legs. Bryocyclops jayabhumisp. nov. is most similar to B. maholarnensis Watiroyram, Brancelj & Sanoamuang, 2015 – the monotypic species of Group VII, which was previously described from Thailand. However, the new species differs from B. maholarnensis by having the following characteristics: i) posterior margin of urosomites serrated; ii) anal operculum triangular with acute-tip; iii) P1–P4Enp-1 without an inner seta; iv) armature on the female P2–P3Enp-2 and P4Enp; v) a transformed spine on the male P3Enp-2. In this study, the generic affinity of the genus Bryocyclops Kiefer, 1927 is discussed and redefined, based on the available literature concerning its principle morphology to fill the present knowledge gap about the characteristics of the genus.

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